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GB/T 48089-2026Ships and marine technology - Vertical steel ladders (English PDF)

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Issued by

State Administration for Market Regulation

Level / Type

National · Recommended

Issue date

August 28, 2026

Implementation date

December 1, 2026

Scope

GB/T 48089-2026 (Ships and marine technology - Vertical steel ladders) is available as an English-translated PDF.

GB/T 48089-2026 is a national standard for vertical steel ladders installed on ships and other marine structures. It covers the types, structure and dimensions of such ladders, their technical requirements and their marking.

According to its scope it applies to the design and manufacture of steel straight ladders. The foreword states that the document is equivalent to ISO 3797:2023, and its normative references include ISO 630-2 on structural steel and ISO 1461 on hot-dip galvanized coatings.

The chapters run from terms and definitions through type, structure and dimensions to technical requirements and marking. Issued on 28 August 2026 and applicable from 1 December 2026, it replaces no earlier standard.

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Document preview — GB/T 48089-2026

National Standard of the People's Republic of China

ICS: 47.020.50
Classification: U 26

Issued by: State Administration for Market Regulation

Preface
1 Scope
2 Normative References
3 Terms and Definitions
4 Type, Structure and Dimensions
5 Technical Requirements
6 Mark
Reference

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

This document is equivalent to ISO 3797:2023 "Steel straight ladders for marine and ocean technology".

1 Scope

This document specifies the type, structure, dimensions, and technical requirements for steel ladders installed on ships.

This document applies to the design and manufacture of steel straight ladders.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies to this document.

ISO 630-2 Structural steels - Part 2: Technical delivery conditions for structural steels for general purposes cal delivery conditions for structural steels for general purposes)

Note: GB/T 34560.2-2017 Structural steel - Part 2: Technical delivery conditions for structural steel for general purposes (ISO 630-2:2011, MOD)

ISO 1461 Technical requirements and test methods for hot-dip galvanized coatings on fabricated steel parts

Note: GB/T 13912-2020 Technical requirements and test methods for hot-dip galvanized coatings on steel components (ISO 1461:2009, MOD)

3 Terms and Definitions

This document does not contain any terms or definitions that need to be defined.

4 Type, structure and size

4.1 Type

Steel straight ladders come in the following two types.

a) Type A. Steel straight ladder with square steel steps (see ISO 1035-2);

b) Type B. Steel straight ladder with round steel steps (see ISO 1035-1).

4.2.1 Structure

The structural diagram of the steel straight ladder is shown in Figure 1.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 630-2 · ISO 1461

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